Table 3: 100 metaphases were scored for each sample. Values in parenthesis are percentages ± S.E. Gaps and polyploidy are not included in aberrant cells. * P< 0.05 and **P< 0.01. |
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Table III. Chromosomal aberration frequencies in Smoker and Non-Smoker groups exposed to chromium. |
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Group |
Smokers |
Non-Smokers |
|||
No. of Examinees |
% Aberrant cells ± S.E |
No. of Examinees |
% Aberrant cells ± S.E |
||
Control |
- |
62 |
134(2.16 ± 0.18) |
58 |
60 (1.03 ± 0.13) |
Duration of exposure |
5-Jan |
40 |
214 (5.35 ± 0.36)** |
40 |
148(3.70 ± 0.30)** |
10-Jun |
25 |
194 (7.76 ± 0.55)* |
25 |
148(5.92 ± 0.48)* |
|
15-Nov |
15 |
162 (10.80 ±0.84)* |
15 |
126 (8.40 ± 0.74)* |
|
Total experience |
(1-15) |
80 |
570 (7.12 ± 0.29)* |
80 |
422(5.27 ± 0.25)* |